Study of access methods in high-speed photonic LANs (Para-Wave NET)

N. Kashima, K. Fukui, A. Suzuki

Research output: Contribution to journalArticlepeer-review


This paper describes a study of access methods in a previously proposed Para-Wave NET, which is a kind of photonic local area networks (LANs) and is intended to realize high-speed LANs. We compare two access methods, a scheduling method (S-method) and a non-scheduling method (NS-method). A use of a scheduler is assumed for the S-method. A pure-ALOHA is assumed for the NSmethod in this paper. Packets are generated according to a Poisson distribution and are processed according to an exponential distribution (an M/M system) for simplicity. We assume that complicated networks discussed in this paper can be approximately treated by concatenated independent M/M systems. We also assume a limited use of optical technologies, such as an optical transceiver and an optical cable. Packets are processed electrically, not optically. We can show a suitable packet generation rate region for each method by comparing the two methods. We discuss and show a benefit of using wavelengths in photonic LANs.

Original languageEnglish
Pages (from-to)25-29
Number of pages5
JournalJournal of Optical Communications
Issue number1
Publication statusPublished - 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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